Alex marquardt, abc news, nairobi. Back here at home the on going drama surrounding the major change in america's health care system coming. Obama care taking effect on OCTOBER 1st, BUT IN A LAST DITCH Stand against it, one senator has performed his own endurance test. Jeff zeleny. I told the american people that I intended to stand until i can stand no more. Reporter: Ted cruz stood fast, for 21 hours, 19 minutes, a fight against a health care law. After reading a bedtime story via cspan, he told story after story how we are bracing for obama care. Enrollment starts next week. In pittsburgh, dan howard received a letter saying his policy will be cancelled because of the new law. Married with six children, he's struggling to find coverage. Of course I'm concerned. Reporter: But in miami, maggie fernandez told us she's been cutting her high blood pressure pills in half, waiting to buy insurance since losing her job earlier this year. I need affordable health care. I'm looking forward to signing up on october 1. Reporter: The bottom line for millions, many healthy will pay more while older and sick americans get a break and costs widely. A family of four making $50,000 will pay $600 a month in some states, far more in others. Some republicans keep pushing to defund obama care, a threat that could still shut down the government next week. Reporter: We caught up with senator cruz moments after he finished speaking to ask him about what he accomplished. This was about giving the american people a chance to speak. And now an announcement fueled by a great fear in all

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